Eobeet whitehill



R. WHITEHILL.

I Lubric'ator. No. 231,636. ,Pat ented Aug. 24,1880

UNITED STATES PATENT OFFICE.

ROBERT WHITEHILL, OF NEW YORK, Y.

LU BRICATO R.

SPECIFICATION forming part of Letters Patent No. 231,636, dated August 24, 1880.

Y Application filed February 2, 1880.

To all whom it may concern.-

Be it known that 1, ROBERT WHITEHILL, of the city, county, and State of New York, have invented certain new and useful Improvements in Lubricators, of which the following is a specification.

My invention relates to lubricators or greasecups for journal-boxes which are adapted to contain grease which requires to be warmed to render it fluid. In such grease-cups a metal pin is commonly loosely arranged vertically with its lower end resting upon the shaft, and the warmth generated in the journal is transmitted. through the pin, melting the grease contained in the cup, and rendering it sufficiently fluid to distribute itself over the journal. A separate weight for acting upon the top of the pin to insure its lower end remaining in contact with the journal is sometimes employed; and myinvention consistsina greasecup provided with such a pin, and constructed so that its cap or cover rests upon the upper end of the pin, and thereby constitutes a weight to press the pin down with certainty into contact with the journal. I preferably also attach to the pin within the cup one or more wires extending toward the side of the cup, and which when the cup or cover is turned act as stirrers to loosen the grease and scrape it away from the sides of the cup.

In the accompanying drawings, Figure 1 represents a side View of a journal-box and a' grease-cup embodying my invention applied thereto, and Fig. 2 represents a transverse vertical sectionthrough such journal and greasecup.

Similar letters of reference designate correspondin g parts in both figures.

A designates the journal-beari n g, and A the grease-cup proper. The grease-cup may if desirable, be made separate and distinct from the journalbox, so that it may be applied to any journal-box by means of a screw-thread or otherwise; but in many cases they may be combined in one casting, as here represented. The cup is provided at its bottom with an oilhole, a, leading to the journal-bearing; and B designates a metal pin fitting loosely in the said oil-hole and resting upon the journal 0.

D designates the cap or. cover of the greasecup, which is represented as surrounding the upper part thereof, and which is fitted thereto so loosely that it is free to move up and down thereon.

In order to insure with certainty the pin B remaining in contact with the journal it is desirable to employ a weight acting upon the top of the pin, and in order to dispense with a separate weight I construct the cup so that the cap or cover constitutes such a weight.

As here represented, the pin B is screwed into a hole, I), in the cap or cover; but this is not necessary, as the cap or cover might simply rest upon the pin.

Attached to and extending from the pin B toward the side of the cup is a wire, a, which, when the cap or cover is turned round, stirs the grease and loosens it from the side of the cup. Although only one wire is here represented, two or more might be used if desirable.

As the journal 0 rotates the heat developed.

by the friction generated in the journal-box is transmitted through the pin B, and the Warmth connnunicated to the grease in the cup melts the latter and renders it fluid as fast as required to feed the journal. As the grease in the lower part of the cup is exhausted the cup or cover may be turned, and the wire 0 will loosen the grease from the side of the cup and also communicate heat from the pin to the grease distant therefrom.

WVhat I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with a grease-cup, of a pin loosely arranged therein, the lower end of which is adapted to bear upon the periphery of a journal to which the cup is applied, and a cap or cover for said cup resting upon the upper end of said pin and constituting a weight to press it downward, substantially as and for the purpose specified.

2. The combination, with the grease-cup A, of the metal pin B and the cap or cover D, permanently secured to said pin, substantially as and for the purpose specified.

3. The combination, with the grease-cup A, of the metal pin B, the cup or cover D, resting upon the upper end of said pin, constituting a weight to press it downward, and one or more wires, 0, attached to said pin and extending outward toward the side of the cup, substantially as and for the purpose specified.

HENRY T. BROWN, FREDK. HAYNES. 

